Ore-concentrator.



N0.s45,449. .l l PATENTBD 1113.26, V19o?. M. CHRISTMANN.

QRE GONGBNTRATOR. APPLIGATION FILED JUNI: 7. 1905.

4 SHEETS-SHEET 1.

PATBNTED PEB. 26, 1907.

4 sums-SHEET 2.

M. GHRISTIILMIN.l

ORE-GONGBNTRATGR.

APPLICATION FILED JUNE 7. 1905.

M. GHRISTMANN.

ORB GONGBNTRATOR.

APPLICATION FILED JUNE 7. 1905.

4 SHEETS-SHEET 3.

PATENTBD EEB. 2 6, 1907.

M. GHRISTMANN. GRE CONCBNTRATOR. APPLICATION PILEED .JUNE 7. 1905.

4 SHEETS-SHEET 4.

Vfl/111111',

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luullllllllum Fig. 1; Fig. 6, an movement end l charge side of the table.

' and useful Improvements in Ore-Concentra- MICHAEL OHRISTMNN, OF LEADVILLE, COLORADO.

ORE-CONCENTRATOR.

I Application filed J' une '1,

Specification of Letters Patent.

1905. serrano. 264.154.

Patented Feb. 26, 19o?.

To a/ZZ whom ib may concern:

'Be it known that LMICHAEL CHRISTMANN, a citizen of the United States of America, residing at Leadville, in the county of Lake and State of Colorado, have invented certain new tors, of which the following is a specification.

My invention relates to improvements in ore-concentrators, and has for object to provide an apparatus which, being simple and eflicient, will ade uately separate the mineral from the gangue lduring one operation, thereby obviating repeating and consequent use of elevators and similar appliances and saving time and labor. I attain these objects by the mechanism illustrated in the accompanying drawings, in the several figures of which like parts are similarly designated, and in which- Figure 1 represents a plan view of the apparatus; Fig. 2, a side elevation thereof;

ig. 3, a vertical longitudinal section therethrough; Fig. 4, an enlarged vertical crosssection taken along line 4 4, Fig. 1; Fig. 5, an enlarged ver tical cross-section along line 5 5, enlarged plan view of the of the stationary frame; Fig. 7, a sectional fragmentary end view thereof; Fig. 8., a section along line 8 8, Fig. 7; Fig. 9, a fragmentary plan view of part of the stationary frame and su erposed rockerarm; Fig. 10, an enlarged fiiagmentary section along theline 10 10, Fig. 5; Fig. 11, a perspective view of one of the'table-supporting rockers.A

5 represents the bed or base frame, consisting of the longitudinal beams 6 and 6 and cross-timbers 7, securely bolted together to form a rigid and adequate support for the table, operating mechanism, and other parts of my device. Mounted on frame 5 is the longitudinally-'movable table 10, composed of the linoleum-covered deck 11, securely braced on girders 12--anri suitablecrosstimbers 13'; VTo" further strengthen the struct-ure and prevent warping, girders 12 may belined with metal plates 14, secured thereto by bolts 15.

Deck 11 is longitudinally divided into two arts 16 and 17, the former of which is plain and normally level, while the, other is provided with diagonally -extending riiiies 18 and inclines toward the lower or gangue-dis- Riiies 18, which, made to taper from the of the deck, terminate a if so desired, may be head to the foot end certain distance from the tables outer edge,

leaving a smooth plane for final separation of the mineral from the gangue.

Table 10 is, with the exception of its foot or discharge end, provided with upwardly-extending ianges 19 and surmounted on its upper edge by a water-trough 20, supported on suitably-formedbrackets 21 and provided on its outer side with a series of dischargeapertures 22. The table is movahlyr supported on two pairs of rockers 23, interposedhetween it and the stationary frame, each pair of' rockers being connected by a transverselyextending rod 24. The lower rounded extremities of rockers 23 are supported in correspondingly-sha ed dies 25, secured in the outer and upwar( ly-extending extremities of parallel curved rocker-arms 26, which are mounted transversely of frame 5 in chars 27,

centrally secured on the cross-timbers 7.-

Arms 26 are connected by tie-rods 28 and a pivot-rod 29, which being secured Aat their lowermost point extends beyond the arms and is mounted in slots 30 plates 38, secured to the under side of the table in chairs 27. Lateral" 8o deflection of the table is prevented by guideand engaging the outersurfaces of rockers 23.

The upper extremities of rockers 23 extend in inverted dies 31, shaped similarly to those on the curved rocker-arms and rigidly secured in corresponding positionsto suitable parts of the table-frame. Y,

It will be observed that the above-described arrangement of parts not only permits longitudmal movement of the table, but also allows it to be transversely inclined by reason of its being pivotally mounted in chairs 27 through instrumentality of the ivot-'rod 29.

The transverse inclination of the table is adjustable by means of a short shaft 32, revolubly mounted in a bearing 33 on the stationary frame and provided witha pinion 34 at its inner and a hand-wheel 3 5 at vits outer extremity. Pinion 34 meshes into a segmental gear 36 onthe inner extremity of pivot-ro 29, and the various parts may be held in any desired position by a set-screw 37, extending through box 33 and engaging shaft 32. l

Durin the operation of the device a rapid longitudinal reciprocatin r or vibrating m0- tion is imparted to the ta le by the mechanism mounted on the up er end of the stationary frame and whic will now be described.

ICC

Rigidly secured to table by nuts 39a is l the forwardly and lon `tudinally extending draw or thrust rod 40, t e outer, extremity of hich extends through a spring 41 and an aperture in theI extremity of the upper arm 42a of a vertical lever 42, fulcrumed at 43 in a standard 44, which is mounted on the stationary frame 5. A nut 45, screwed onto the outer extremity of the draw-rod, engages the outer surface of arm 42, while a second j nut 46 gives tension to spring 41, which forms any convenient pulleys 50. "I'h on wheel 49.

an adjustable buffer the device.

Mounted in bearings 47, bolted to the stationary frame, is the transverse shaft 48, which carries the cam or wiper wheel 49. Shaft 48 may receive its rotary motion from source of power by means of ,e peripheral surface of wheel 49 engages the periphery of an antifrictionwheel 51, revolubly mounted in a slot 52 in the llower arm 42c of lever 42, which extends along the inner surface of the end timber 78fof the stationary frame. A headed rod 53 extends through apertures in the lower extremity of arm 42c and timber 7a and through a coil-spring 54, its headengaging the surface of said arm, while 'a nut 55, screwed onto its outer extremity, gives tension to spring 54.

During the operation of the device the rotation of shaft 48 will cause the peripheral projections on the cam-wheel to engage the antfriction-whe'el 51 in arm 42,which, being forced inwardly, impels the opposite arm of lever 42 to move outwardly, drawing the table-with it. Spring 54 is at the same time compressed, with the result -that the moment the projection on the wiper-wheel is disengaged from the periphery `of the an-tifrictionwheel the relaxation of said -spring will cause the lever and table to resume their original position. In this manner Ia rapid recipro' eating or vibrating movement is imparted Vto the ta'liile, the speed of which may be regulated by thenumber'of peripheral projections.

during the operation of Although the ore may be fed onto the tale -in any suitable manner, I preferably and in order t o obtain perfect results make use of a pan 58, which -is mounted on an elevated platform 55 Eat the feed end of the table by means Aof antifriction-'balls 57, which, being inter osed 'between the two, engage corren" 'gly-shapedsockets 56, secured 'to the box 78, mounted patform, and op ositely-located Iinverted Sockets -59 on thel ower surface of -thepan. horizontally-arranged ecoentrics 60 vand 60," extending in correspondingly-'shaped sockets 610m the .under surface ofthe Span, are adapted to im art an Veccentric v'movement Ito pan. 58 an are to `thisend secured to, fthe =upperextremities of vertical shafts'62 and 62a, mounted in bearings '63 and steps 64 on 'the stationary frame. Shafts 62 and 62 are, furthermo gear-wheels 65, which mesh into correspond' ing wheels 66 on a counter-shaft 67, mounted in bearings on standard 71, andV which is operatively connected with shaft 48 by a belt ,68,`pass1ng around pulleys 69 and 70 on said shafts. lan 58, having an outwardly-flaring peripheral side, is provided with a number ofradially-extending riiiies 72 and ancentral upwardly-extending cylindrical projection 32, the upper surface of which is concave to receive the pulp discharged thereon through a valve-controlled spout 75 from a superposed receptacle 74. By reason of the eccentric motion of pan 58 the pulp overflowin the edges of projection 32 will thus be fied around all parts of the pan instead of being discharged therein at one point. Pan 58 is, furthermore, provided with two valvecontrolled discharge-spouts 76 and 77, the lower one, 76, of which being located near the bottom'discharges t-he heavy and valuable particles contained in the pulp into a feedon table 10 and having .a number of apertures 78a, through which the material is spread over the surface of the deck. The upper spout 77 located near the upper edge of the pan, discharges the lighter matter 0r gangue into a launder 79, which conveys it to a settling-tank or other suitable receptacle. The classifying and feeding apparatus thus described in combination with my table is subject of a separate application for patent, gerial No. 284,193, led October 24, 1905. i

The worthless matter or gangue discharged over the lower or discharge side of the table falls in a launder 105, placed alongside said table,and wlich,like launder 79,may lead to a settling-tank or other receptacle. A second launder 106, placed alongsidelaunder 105, receives and conveys the silica contained in the pulp, which, collecting at one point on the lower side of the table during the operation of the device, is-discharged over an apron 107, which, being hung over the side of the table and launder-105, may be moved to any desired point.

Having thus described the mechanical construction of my device, its operation is as follows: The pulp being discharged from tank 74 through spout 75 onto the concave' surface of rojection 73 of an 58,is, as here- I tofore vexplhined, fed eve j along the inner surface 4of 'the pan, in which, by reason of it eccentric motion, resembling that of the ordinary milners pan, the heavy mineral-bearing articles of the pulp settle on the bottom to e, provided with bevel:

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e discharged through spout 76 into the feedbox 78 onp'art 16=ofthe deck. Being spread over Ithe smooth portion 16 of the table through apertures '78a in the feed-box, the matter is separated by reason of the vibrat` ing motion of the table, the heaviest and most valuable particleslmving along partv 16 of the deck to be discharged along its lower end, while the lighter matter, aided by the Water supplied from trough 20, will flow over the ritfled inclined portion 17 of the table, the riflles on which rogressively catch the heavier particles an guide them to the lower or discharge end of the table, while the lighter matter or gangue overflowing the side of the table falls into launder 105.

Although the'device has been illustrated in the drawings as being in a horizontal position, it may be preferable While operating to incline the same from the head to the tail end by elevating and propping the movement end of the stationary frame.

Having thus described my invention, what I claim is i 1. In combination a stationary frame, a concentration-deck mounted thereon said deck having a level portion extending from end to end thereof and a portion inclining laterally from said level portion, rifiles arranged diagonally on said inclined portion, a space being left between the rear ends of the rifles and the end of the deck and means for reciprocating the deck.

2. In combination a stationary frame, a concentrator-deck thereon` said deck having a level portion extending from end to end thereoic and a portion inclining laterally from said level portion, riffies diagonally arranged on said inclined portion, 'a trough locat `d along the side edge of said inclinedportion, means for spraying water on the outer edge of the level portion, means for feeding the material at the upper end of said level portion, means for reciprocating said deck and means for inclining said deck transversely.

3. In combination, a stationary frame, a

concentrator-deck mounted to have a reciprocatmg movement thereon, a two-armed lever ulcrumed on said frame, a draw-rod connected at one end to said deckV and its otherl end resiliently connected with the upper end of the lever, said connection consisting of a spring and a nut screwed on the draw-rod, a friction-roller carried by the lower end of said lever, a wiper-wheel revolubly mounted on the frame and arranged to engage the said Jf`rictio1'1-'roller, a spring engaging with the lower end of the lever to hold it in its normal position and means for adjusting the said spring.

4. In combination, a stationary frame, parallel segmental rocking arms mounted on said frame, a shaft passing through the centers of said rocking arms, means for rocking said shaft, a rocker carried by each end of each rocking arm, a shaft connecting the rockers on each rocking arm together, each rocker having two rounded portions, one engaging With the rocking arm, a deck resting on the other rounded portion of each rocker, and means for reciprocating the deck.

In testimony whereoi I have aHiXed my signature in presence of two witnesses.

. MICHAEL CHRISTMANN.

Witnesses:

JAMES GLYNN, ANDREW P.ADoLrHsoN. 

